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Popham Panel
A Popham panel, or T-signalling panel, was a means of ground-to-air communication, in Morse code, developed during the First World War, before the introduction of radio communication. They were named for Robert Brooke-Popham and were used by the British and American armed forces. They were used in the Waziristan campaign of 1919–1920, and in the Kabul Airlift of 1928, and remained in use as a reserve method of communicating with aircraft as late as just before the Second World War. They were eventually rendered obsolete by the development of effective radio communication with aircraft. Origin The Popham panel, first introduced in 1918, was named for First World War Royal Air Force officer, Robert Brooke-Popham, and designed to communicate messages to aircraft from the ground, in Morse code, before the introduction of radio communication. Operation Anne Baker described a Popham panel as the size of a "small Persian rug" and structured as a blind. The top of the slats wer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The US Army On The Western Front 1917-1918 Q70880
''The'' () is a grammatical article in English, denoting persons or things that are already or about to be mentioned, under discussion, implied or otherwise presumed familiar to listeners, readers, or speakers. It is the definite article in English. ''The'' is the most frequently used word in the English language; studies and analyses of texts have found it to account for seven percent of all printed English-language words. It is derived from gendered articles in Old English which combined in Middle English and now has a single form used with nouns of any gender. The word can be used with both singular and plural nouns, and with a noun that starts with any letter. This is different from many other languages, which have different forms of the definite article for different genders or numbers. Pronunciation In most dialects, "the" is pronounced as (with the voiced dental fricative followed by a schwa) when followed by a consonant sound, and as (homophone of the archai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miranshah
Mīrānshāh (Pashto and ur, ) or Mīrāmshāh () is a small town that is the administrative headquarters of North Waziristan District, Khyber Pakhtunkhwa province of Pakistan. Miranshah lies on the banks of the Tochi River in a wide valley surrounded by the foothills of the Hindu Kush mountains. It is located at an elevation of about , from the Pakistan-Afghanistan border (Durand Line). The nearest city in Pakistan is Bannu, about to the east, while the nearest city across the border in Afghanistan is Khost, to the northwest. The city has a shrinking population of only 4,361, and it has only 356 households. This makes it the least populous urban area in Bannu Division, but it is also the only urbanized area in the entire region of North Waziristan, and also the entire Waziristan region, a mountainous area that has 99% of its 1.22 million residents living in rural areas. Administration Miranshah is the administrative headquarters of North Waziristan District, in the former F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optical Communications
Optical communication, also known as optical telecommunication, is communication at a distance using light to carry information. It can be performed visually or by using electronic devices. The earliest basic forms of optical communication date back several millennia, while the earliest electrical device created to do so was the photophone, invented in 1880. An optical communication system uses a transmitter, which encodes a message into an optical signal, a channel, which carries the signal to its destination, and a receiver, which reproduces the message from the received optical signal. When electronic equipment is not employed the 'receiver' is a person visually observing and interpreting a signal, which may be either simple (such as the presence of a beacon fire) or complex (such as lights using color codes or flashed in a Morse code sequence). Modern communication relies on optical networking systems using optical fiber, optical amplifiers, lasers, switches, routers, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviation In World War I
World War I was the first major conflict involving the large-scale use of aircraft. Tethered observation balloons had already been employed in several wars, and would be used extensively for artillery spotting. Germany employed Zeppelins for reconnaissance over the North Sea and Baltic and also for strategic bombing raids over Britain and the Eastern Front. Aeroplanes were just coming into military use at the outset of the war. Initially, they were used mostly for reconnaissance. Pilots and engineers learned from experience, leading to the development of many specialized types, including fighters, bombers, and trench strafers. Ace fighter pilots were portrayed as modern knights, and many became popular heroes. The war also saw the appointment of high-ranking officers to direct the belligerent nations' air war efforts. While the impact of aircraft on the course of the war was mainly tactical rather than strategic, most important being direct cooperation with ground forces ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviation Communications
Aviation includes the activities surrounding mechanical flight and the aircraft industry. ''Aircraft'' includes fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air craft such as hot air balloons and airships. Aviation began in the 18th century with the development of the hot air balloon, an apparatus capable of atmospheric displacement through buoyancy. Some of the most significant advancements in aviation technology came with the controlled gliding flying of Otto Lilienthal in 1896; then a large step in significance came with the construction of the first powered airplane by the Wright brothers in the early 1900s. Since that time, aviation has been technologically revolutionized by the introduction of the jet which permitted a major form of transport throughout the world. Etymology The word ''aviation'' was coined by the French writer and former naval officer Gabriel La Landelle in 1863. He derived the term fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Afghan National Army
Afghan may refer to: *Something of or related to Afghanistan, a country in Southern-Central Asia * Afghans, people or citizens of Afghanistan, typically of any ethnicity **Afghan (ethnonym), the historic term applied strictly to people of the Pashtun ethnicity **Ethnic groups in Afghanistan, people of various ethnicities that are nationally Afghan * Afghan Hound, a dog breed originating in the mountainous regions of Afghanistan and the surrounding regions of Central Asia *Afghan (blanket) *Afghan coat *Afghan cuisine People * Sediq Afghan (born 1958), Afghan philosopher * Asghar Afghan (born 1987), former Afghan cricketer * Afgansyah Reza (born 1989), Indonesian musician also known as "Afgan" * Afghan Muhammad (died 1648), Afghan khan in modern day Russia * Azad Khan Afghan (died 1781), Afghan Commander and Ruler Places * Afghan, Iran, a village in Sistan and Baluchestan Province, Iran Other uses * Afghan (Australia), camel drivers from Afghanistan and Pakistan who came to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air University Press
Air University Press is a division of the Academic Services Directorate and housed under the Muir S. Fairchild Research Information Center of Air University, Maxwell AFB, Alabama. It publishes faculty and student research, academic journals, other materials relevant to the Air University program, school-selected student papers, faculty research efforts, and other documents that support AU's program of professional military education. Among its paper series are Air War College's Maxwell Papers, Air Command and Staff College's Wright Flyers, the School of Advanced Air and Space Studies's Drew Papers, and the Fairchild, Walker, Chennault and Kenney series. It also publishes ''Air and Space Power Journal'', the professional journal of the Air Force. Additionally, the Press publishes the distinguished ''Strategic Studies Quarterly ''Strategic Studies Quarterly'' (2007-2021) was a quarterly peer-reviewed academic journal sponsored by the United States Air Force covering issues related ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Air And Space Power Journal
The ''Air & Space Power Journal'' was name of the flagship journal of the Department of the United States Air Force from 2001 to 2021. The journal, now named ''Air & Space Operations Review'', is a quarterly military science scholarly journal published by Air University Press, the academic publisher of the United States Air Force, in English. Due to budget cuts, the print version was temporarily suspended in 2022. Its website hosts electronic versions of all past publications. The journal is headquartered at Maxwell AFB in Montgomery, Alabama Montgomery is the capital city of the U.S. state of Alabama and the county seat of Montgomery County. Named for the Irish soldier Richard Montgomery, it stands beside the Alabama River, on the coastal Plain of the Gulf of Mexico. In the 202 .... History The English language version was established in 1947. Previous names of the publication include ''Air University Quarterly Review'', ''Aerospace Power Journal'', ''Airpower Journal'', a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Embassy Of The United Kingdom, Kabul
The Embassy of the United Kingdom in Kabul was the United Kingdom's diplomatic mission to Afghanistan. The British first established a diplomatic mission, a legation, in 1922 after the Anglo-Afghan Treaty of 1919. The Viceroy of India George Curzon, 1st Marquess Curzon of Kedleston ordered that a large and opulent compound be constructed and this was completed in 1927. The legation was withdrawn in the Kabul Airlift as a result of the 1928-29 civil war but was re-established in 1930. The legation became an embassy in 1948 but this was withdrawn in 1989 following the Soviet withdrawal from Afghanistan. The embassy compound was handed over to Pakistan in 1994. Following the 2001 United States invasion of Afghanistan an embassy was re-established at a new site in the Wazir Akbar Khan District. The embassy, on the edge of Kabul's secure zone, was considered vulnerable to attack in 2018 and consideration was given to a new site, but did not proceed. Following the start of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Airco DH
The Aircraft Manufacturing Company Limited (Airco) was an early United Kingdom, British aircraft manufacturer. Established during 1912, it grew rapidly during the First World War, referring to itself as the largest aircraft company in the world by 1918. Airco produced many thousands of aircraft for both the British and Allied military air wings throughout the war, including fighter aircraft, fighters, trainer aircraft, trainers and medium bomber, bombers. The majority of the company's aircraft were designed in-house by Airco's chief designer Geoffrey de Havilland. Airco established the first airline in the United Kingdom, Aircraft Transport and Travel Limited, which operated as a subsidiary of Airco. On 25 August 1919, it commenced the world's first regular daily international service. Following the end of the war, the company's fortunes rapidly turned sour. The interwar period was unfavourable for aircraft manufacturers largely due to a glut of surplus aircraft from the war ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chief Of The Air Staff (India)
The Chief of the Air Staff (India), known also as the Air Force Chief, has been the title of the professional head of the Indian Air Force since 1950. The CAS is a statutory position in the Indian Armed Forces held by the most senior officer of the Air Force, and is usually the highest ranking air officer of the Indian Armed Forces unless the Chief of Defence Staff is an officer of the aerial branch. The current CAS is Air Chief Marshal Vivek Ram Chaudhari who took office on 30 September 2021, following the retirement of Air Chief Marshal Rakesh Kumar Singh Bhadauria. Office of the Chief of Air Staff At Independence, the head of the Air Force designated as the "Air Marshal Commanding, Royal Indian Air Force". On 1 March 1948, the title of "Chief of the Air Staff" was added, with a further re-designation to "Chief of the Air Staff and Commander-in-Chief, Royal Indian Air Force" on 21 June to maintain uniformity across the three armed services. The "Royal" designation was dro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subroto Mukerjee
Air Marshal (India), Air Marshal Subroto Mukerjee Order of the British Empire, OBE (Bengali Language, Bengali: সুব্রত মুখোপাধ্যায়) (5 March 1911 – 8 November 1960) was an Indian military officer who was the first Chief of Air Staff (India), Commander-in-Chief (C-in-C) of the Indian Air Force. He was awarded several honours during the course of a three-decade-long career, ended by his untimely demise in 1960. He has been called the ''Father of the Indian Air Force''. Born in a Bengali people, Bengali family of repute, he was educated both in India and in United Kingdom, the United Kingdom. He joined the Royal Air Force and later was one of the first recruits of the Indian Air Force (IAF) in 1933. He flew with the No. 1 Squadron IAF from 1933 to 1941. He saw extensive action in the North-West Frontier Province during this stint and was mentioned in dispatches. He attended the Staff College, Quetta in 1941 before returning to command No. 1 Squa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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